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| Main Author: | |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional Autónoma de México
2009
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| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=57115758100 |
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Table of Contents:
- GANAS: A HYBRID ANASTIGMATIC ASPHERICAL PRIME-FOCUS CORRECTOR F. Della Prugna H. Schenner Física, Astronomía y Matemáticas Instrumentation The Cassegrain-Coudé 1 meter Car to the focal plane of the primary f/5 l Zeiss telescope at the Venezuelan National Astronomical Observatory uses six optical elements. Removal of the secondary convex mirror gives accessspheroidal mirror, but spherical aberration, coma, astigmatism and eld curvature severely hamper its imaging capabilities. In order to carry out prime-focus imaging, we designed and manufactured a corrector group, called GAnAs, to minimize these aberrations over a circular eld of 300. The corrector group is a hybrid conguration with two thin aspherical 4th-order plates and a meniscus lens. 2009 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57115758100 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.35